From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6CA1334FF71 for ; Wed, 21 Jan 2026 15:42:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.156.1 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769010161; cv=none; b=oLSZGnVsQQ3ft4Bo+LGaq+z3RprWpCsU4jAtzEoaXNL1me3IYyiS1Cn8A42mS851TvJRQ8CRxX9v4SLiVwQNBngbltPWxd3iOt59EY/QVM8duZKtfRvkx2ZvXRlH0fkvnc5GuCIc627fJOSlOzDKxB+6IWeS/eX4QprCVTjF4cY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769010161; c=relaxed/simple; bh=1jYKesVwDIroSisRg9Dq0B3qfcN2XmU98Yte3JuuMEE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=pSrcNR/J0wNKzgHfqr/ZJ7SkR1sHDzWSuFcKHSN0rpWeTVeAo6uMBIBcjSYlflZwphS6fCGjXxSiX7srpSaMJF2De13ydxrdPuRId7N8u1x6Gea1LVfEHP1B8A4OmIrY0QukyMeg4K2QatxmgTAy7XIWv/D+tIo6Q3MWL1J41HE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=ryGJ3ZjZ; arc=none smtp.client-ip=148.163.156.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="ryGJ3ZjZ" Received: from pps.filterd (m0356517.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 60LD91sp020784; Wed, 21 Jan 2026 15:42:14 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pp1; bh=kHZaOK PogBahFVPQH9KVJDoyz18EPzplic6bpSGOYBA=; b=ryGJ3ZjZCcZFSYs1VZIfHr jF9yHlJrXns9FBC3emGP7pLVRZUKEjuOUMes4mIWJcKIQ/Fmjt5K7N7+tSAoBT60 7eonbZduqw719QiEMQE0P8rEpl704aqKWJrHqI9L9FdWbK24YFNAxPFoNcIRnJYo WkcvRcAJpyMenSPHmW8PzDg30EktaY0wb5hgGPrieXqrzM0qU/tYN1fCl2kOLK6R Te4vvks17r3nVlxMVoZ+bavxFDg/v/LQhyP65prKNbfpt6OZQw938e4kFdTlydRo 0wv5bB3SIVUMtHrKVyU5t/QvIzCAqDZuLgfiPM8faKsGxii7lO/HGlA73l+mpfbA == Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4br2564yn1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 21 Jan 2026 15:42:14 +0000 (GMT) Received: from m0356517.ppops.net (m0356517.ppops.net [127.0.0.1]) by pps.reinject (8.18.1.12/8.18.0.8) with ESMTP id 60LFSC6X009510; Wed, 21 Jan 2026 15:42:13 GMT Received: from ppma13.dal12v.mail.ibm.com (dd.9e.1632.ip4.static.sl-reverse.com [50.22.158.221]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4br2564ymw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 21 Jan 2026 15:42:13 +0000 (GMT) Received: from pps.filterd (ppma13.dal12v.mail.ibm.com [127.0.0.1]) by ppma13.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 60LETGsI002002; Wed, 21 Jan 2026 15:42:12 GMT Received: from smtprelay03.fra02v.mail.ibm.com ([9.218.2.224]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 4brpyjvmhc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 21 Jan 2026 15:42:12 +0000 Received: from smtpav02.fra02v.mail.ibm.com (smtpav02.fra02v.mail.ibm.com [10.20.54.101]) by smtprelay03.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 60LFgAWc57606618 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 21 Jan 2026 15:42:10 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B781B2004B; Wed, 21 Jan 2026 15:42:10 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F00DA20043; Wed, 21 Jan 2026 15:42:07 +0000 (GMT) Received: from [9.39.23.228] (unknown [9.39.23.228]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 21 Jan 2026 15:42:07 +0000 (GMT) Message-ID: <3c2793bc-3bde-4872-be88-b906127ba74f@linux.ibm.com> Date: Wed, 21 Jan 2026 21:12:07 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/8] sched/topology: Compute sd_weight considering cpuset partitions To: K Prateek Nayak Cc: Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , linux-kernel@vger.kernel.org, Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Chen Yu , "Gautham R. Shenoy" References: <20260120113246.27987-1-kprateek.nayak@amd.com> <20260120113246.27987-2-kprateek.nayak@amd.com> Content-Language: en-US From: Shrikanth Hegde In-Reply-To: <20260120113246.27987-2-kprateek.nayak@amd.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTIxMDEyOSBTYWx0ZWRfX2a4HVmpXwgBv 6bYpiuMPe03E2TIK8jH+N04xLblaD2cnwsEzdn8EDa4VyDPBiNewwgbbvWyEuRvqxlg1GQFn6CF wvRK3GLuH7WfTSasAimVq2QfdK3kTwscLismWB+cgqierWm4XnK9nKhb0pbBNHIYnaCpV54xmwq V6CeDsqNPYQXx3L2H2+42aobFqYWj+mn9V55uBJ3Z8/Hh4PbX5vfsGenGznZkN2E+BflKcxBIxI WNBMF5V3SmNbS1ldvIk0nM2p2bt8/27WyHj+8bzAKCh5U/oAZEPic1PeRpXKcH47YUQGnwTrcX1 rwwnOwVGz1e+70/D2r5mAo2qwo0Juw7qgOC51cBOJ3PwRey/8YIgQ652wLKe1VH+htW1Uo15zXp ikUO81e5QaRwmmTaneGAwg5bHuWTA03nq4fUHppudVW7ydOe3ki4AKFOIQab925HIBQ30CQ2UCv JN4JB2mFvKICx2Iyosw== X-Authority-Analysis: v=2.4 cv=BpSQAIX5 c=1 sm=1 tr=0 ts=6970f3d6 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=VkNPw1HP01LnGYTKEx00:22 a=zd2uoN0lAAAA:8 a=VnNF1IyMAAAA:8 a=7Mex3UklY5nn3YAh-UYA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: m0r-keruPEzMUslTfOhiNO1eSBtoZK82 X-Proofpoint-ORIG-GUID: JOJIDJZBKPug225cwtQlOXEt9b3nKqPQ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.20,FMLib:17.12.100.49 definitions=2026-01-21_02,2026-01-20_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 bulkscore=0 clxscore=1015 adultscore=0 phishscore=0 malwarescore=0 impostorscore=0 suspectscore=0 priorityscore=1501 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2601150000 definitions=main-2601210129 On 1/20/26 5:02 PM, K Prateek Nayak wrote: > The "sd_weight" used for calculating the load balancing interval, and > its limits, considers the span weight of the entire topology level > without accounting for cpuset partitions. > Please add one example showing the wrong sd_weights while having cpuset partitions. That would be helpful. > Compute the "sd_weight" after computing the "sd_span" considering the > cpu_map covered by the partition, and set the load balancing interval, > and its limits accordingly. > > Fixes: cb83b629bae03 ("sched/numa: Rewrite the CONFIG_NUMA sched domain support") > Signed-off-by: K Prateek Nayak > --- > Changelog rfc v2..v3: > > o New patch. > --- Reviewed-by: Shrikanth Hegde